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Physics

Physics
How much mechanical work must be done to completely melt 1 gram of ice at 0°C ?

80 J
2268 J
336 J
4.2 J

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Physics
The force that binds the neutrons and protons in a nucleus is called as:

Strong Nuclear Force
Gravitational Force
Weak Nuclear Force
Electromagnetic Force

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Physics
The boiling point of liquids vary as

Temperature varies
Pressure varies
Density varies
Volume varies

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Physics
. . . . . . . . . exerts a force on anything that has an electric charge.

All of these
Inductive field
Electrostatic force
Electric field

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Physics
Red is used as an emergency or danger signal as

It is scattered
It is a striking colour
Its wavelength is the longest
It has very high energy

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Physics
When a piece of stone is immersed in water, it displaces water of equal

Density
Volume
Mass
Specific gravity

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